Silverlight 动画效果1 - 旋转

Silverlight 动画效果1 -- 旋转

效果如下:

代码如下:

        Storyboard sb,sb2;        PlaneProjection pp;        private void button1_Click(object sender, RoutedEventArgs e)        {            if (this.Projection == null)            {                this.Projection= pp = new PlaneProjection                {                    RotationY=0    //--Y轴角度为0                };            }            if (sb == null)            {                sb = new Storyboard();                DoubleAnimation da = new DoubleAnimation();                Storyboard.SetTarget(da, this.Projection);                Storyboard.SetTargetProperty(da, new PropertyPath("RotationY"));//--旋转Y轴                sb.Children.Add(da);                da.From = 0;//--从0度开始                da.To = 90; //--旋转90度                da.Duration = TimeSpan.FromSeconds(0.5); //时间0.5s                sb.Completed += new EventHandler(sb_Completed);//转完一半开始别一半            }            sb.Begin();//开始                    }        void sb_Completed(object sender, EventArgs e)        {            if (sb2 == null)            {                sb2 = new Storyboard();                DoubleAnimation da = new DoubleAnimation();                Storyboard.SetTarget(da, this.Projection);                Storyboard.SetTargetProperty(da, new PropertyPath("RotationY"));                sb2.Children.Add(da);                da.From = 270;//从270度开始                da.To = 360;//到360度                da.Duration = TimeSpan.FromSeconds(0.5);                sb2.Completed += new EventHandler(sb2_Completed);            }            this.Title = this.Title == "测试一" ? "测试二" : "测试一";            sb2.Begin();                    }        void sb2_Completed(object sender, EventArgs e)        {                    }